Peel and dice potatoes. In a large saucepan, boil for approximately 30-40 minutes, or until tender. Drain (see note below).

Mash potatoes with a potato masher until broken up; add butter and milk (or half & half) until desired consistency, and mix with a hand mixer (or a standalone mixer) until smooth.

Blend in Asiago cheese and garlic powder; mix until smooth.

NOTE: Serves 4-6. To avoid lumps when mashing, put potatoes through a Ricer first before mashing and adding other ingredients.